import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
/**
 * Get the default Fresco configuration builder.
 * Allows adding of configuration options in addition to the default values.
 *
 * @return {@link ImagePipelineConfig.Builder} that has been initialized with default values
 */
public static ImagePipelineConfig.Builder getDefaultConfigBuilder(ReactContext context) {
  HashSet<RequestListener> requestListeners = new HashSet<>();
  requestListeners.add(new SystraceRequestListener());

  OkHttpClient client = OkHttpClientProvider.createClient();

  // make sure to forward cookies for any requests via the okHttpClient
  // so that image requests to endpoints that use cookies still work
  CookieJarContainer container = (CookieJarContainer) client.cookieJar();
  ForwardingCookieHandler handler = new ForwardingCookieHandler(context);
  container.setCookieJar(new JavaNetCookieJar(handler));

  return OkHttpImagePipelineConfigFactory
    .newBuilder(context.getApplicationContext(), client)
    .setNetworkFetcher(new ReactOkHttpNetworkFetcher(client))
    .setDownsampleEnabled(false)
    .setRequestListeners(requestListeners);
}
 

import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
private static ImagePipelineConfig getDefaultConfig(
    Context context,
    @Nullable RequestListener listener,
    @Nullable DiskCacheConfig diskCacheConfig) {
  HashSet<RequestListener> requestListeners = new HashSet<>();
  requestListeners.add(new SystraceRequestListener());
  if (listener != null) {
    requestListeners.add(listener);
  }

  OkHttpClient okHttpClient = OkHttpClientProvider.getOkHttpClient();
  ImagePipelineConfig.Builder builder =
      OkHttpImagePipelineConfigFactory.newBuilder(context.getApplicationContext(), okHttpClient);

  builder
      .setDownsampleEnabled(false)
      .setRequestListeners(requestListeners);

  if (diskCacheConfig != null) {
    builder.setMainDiskCacheConfig(diskCacheConfig);
  }

  return builder.build();
}
 

import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
private byte[] loadFromUrl(String url) {
    try {
        Request request = new Request.Builder().url(url).get().build();
        Response response = OkHttpClientProvider.createClient().newCall(request).execute();
        return response.body().bytes();
    } catch (IOException e) {
        throw new IllegalStateException("Could not fetch data from url " + url);
    }
}
 

import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
public RNPacketzoomModule(ReactApplicationContext reactContext) {
    super(reactContext);
    this.reactContext = reactContext;

    OkHttpClient client = OkHttpClientProvider.getOkHttpClient();
    OkHttpClient replacementClient = client
            .newBuilder()
            .addInterceptor(new PacketZoomInterceptor())
            .build();
    OkHttpClientProvider.replaceOkHttpClient(replacementClient);
}
 

import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
private static ImagePipelineConfig getDefaultConfig(Context context) {
  HashSet<RequestListener> requestListeners = new HashSet<>();
  requestListeners.add(new SystraceRequestListener());

  return OkHttpImagePipelineConfigFactory
    .newBuilder(context.getApplicationContext(), OkHttpClientProvider.getOkHttpClient())
    .setDownsampleEnabled(false)
    .setRequestListeners(requestListeners)
    .build();
}
 

import com.facebook.react.modules.network.OkHttpClientProvider; //导入依赖的package包/类
private static HttpDataSource.Factory buildHttpDataSourceFactory(Context context, DefaultBandwidthMeter bandwidthMeter) {
    return new OkHttpDataSourceFactory(OkHttpClientProvider.getOkHttpClient(), getUserAgent(context), bandwidthMeter);
}